A United Airlines flight from Chicago to Hong Kong was diverted to Alaska after the flight crew reported a man on board had vandalized two airplane bathrooms by spreading human waste, airport police said on Friday.

'We received a report of a passenger who had messed up the bathrooms with his own feces,' Anchorage Airport Police Lieutenant Joe Gamache said by telephone.

The man, a 22-year-old Vietnamese passport holder with U.S. residency, was escorted off the plane in handcuffs on Thursday night and met by law enforcement in the terminal, Gamache said.

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A man (pictured, muzzed) on a plane traveling from Chicago to Hong Kong spread his own feces in two bathrooms, in addition to other acts

The plane was diverted to Anchorage, where the 22-year-old man was escorted off in cuffs

The passenger sitting next to the man said his family was sending him to Vietnam in an effort to help him stay out of 'trouble', KTVA reports.

Tri Nguyen told KTVA: 'He just was out of control and I tried to calm him down as much as I could.'